ill bred
[adjective]
Synonyms: boorish, churlish, cloddish, loutish, lowbred, rugged, uncivilized, uncultured, unpolished, unrefined, rude, discourteous, disgracious, disrespectful, ill-mannered, impertinent, impolite, incivil, uncivil, ungracious

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Antonyms: well-bred, well-mannered

[TahlilGaran] English Synonym Dictionary ▲

ˌill-ˈbred adjective
rude or behaving badly, especially because your parents did not teach you to behave well

[TahlilGaran] Dictionary of Contemporary English ▲